Higher standard 38" Trampoline. Finally, a workout that's fun! Jump for joy! You've found an exercise program that won't bore you to tears. The Higher Standard 38" Trampoline is a proven winner for improved cardiovascular fitness, overall muscle strength and aiding in weight loss. Start slowly and progress at your own speed. By adding hand or ankle weights to your routine, you'll progress to a more complete cardiovascular workout.Higher standard 38" Trampoline. Finally, a workout that's fun! Jump for joy! You've found an exercise program that won't bore you to tears. The Higher Standard 38" Trampoline is a proven winner for improved cardiovascular fitness, overall muscle strength and aiding in weight loss. Start slowly and progress at your own speed. By adding hand or ankle weights to your routine, you'll progress to a more complete cardiovascular workout.Higher standard 38" Trampoline. Finally, a workout that's fun! Jump for joy! You've found an exercise program that won't bore you to tears. The Higher Standard 38" Trampoline is a proven winner for improved cardiovascular fitness, overall muscle strength and aiding in weight loss. Start slowly and progress at your own speed. By adding hand or ankle weights to your routine, you'll progress to a more complete cardiovascular workout.